Multi-functional automatic circular massaging device

Abstract

A multi-functional automatic circular massaging device including at least a pair of motors respectively disposed in a pair of housings to rotatively drive cams for creating a vibrating massaging effect, a soft pad formed with two lateral recesses for receiving the housings, a heating coil sandwiched between two layers of unwoven fabrics, a surface layer covering the soft pad, and a controlling box connected to the motors and an external power source. The surface layer is formed with alternating X-shaped protuberances and spherical bosses and alternating long and short rod-like protuberances disposed on four side edges of the surface layer. The controlling box includes a circuit board having a specific chip which controls the motors to output varying power at a predetermined time interval, creating sequential automatic circularly varying at least eight stages of massaging effect from strongest stage to weakest stage. A setting key of the controlling box is used to vary and fix the time interval for each of the eight stages. A heating key is used to activate the heating coil for creating heating effect. The massaging device is suitable to be disposed in both back cushion and seat cushion of a seat.

What is claimed is: 
     
       1. An automatic massaging device for a back pad, comprising a plurality of motors, each said motor driving a rotating cam means for creating a vibrating massaging effect, each said motor and respective cam means being disposed in a separate housing, a soft pad formed with a plurality of separate lateral recesses each recess receiving one of said housings, a surface layer covering said soft pad, and a controlling box connected to said motors and an external power source, wherein each of said housings has an upper cap with outward extending edges so as to facilitate the installation of said housings in the soft pad, said surface layer having front and back surfaces, said front surface formed with a plurality of alternating X-shaped protuberances and spherical bosses and said back surface formed with slide-proof crossing strips,   said controlling box containing a circuit board, which independently controls the speed at which each motor rotates, with means for rotating each motor independently at a plurality of speeds including off, slow rotation, and fast rotation speeds so that each said motor is able to simultaneously operate at different speeds such that by operating the motors at the same time at the said plurality of speeds, a number of different vibration intensity levels are achieved, and   means for achieving periodically cycling vibration massage intensity levels by operating the said automatic massaging device at each of the said vibration intensity levels for a short and equal duration of time, repetitively cycling between the weakest and the strongest intensity levels.